Arm Cortex-M7 SoC Radiation-Hardened Technology-Based SAMRH71 MPU and SAMRH707 MCU for Space Systems

29 April 2021 - 0 Comments

Arm Cortex-M7 SoC Radiation-Hardened Technology-Based Microcontroller

Microchip Technology has introduced the Arm Cortex-M7 SoC radiation-hardened technology implemented SAMRH71 Arm-based microprocessor (MPU) and the SAMRH707 microcontroller (MCU). The radiation-hardened SAMRH71 provides a combination of space connectivity interfaces along with high-performance architecture with more than 200 Dhrystone MIPS (DMIPS). The SAMRH71’s Arm Cortex-M7 core is coupled with high-bandwidth communication interfaces such as SpaceWire, MIL-STD-1553, CAN FD, and Ethernet with IEEE 1588 Generalized Precision Time Protocol (gPTP) capabilities for offering high-level radiation performance, extreme temperatures, and high reliability.

As an expansion of Microchip’s radiation-hardened Arm Cortex-M7-based MCUs portfolio, the SAMRH707 device provides analog functions on top of a >100 DMIPS processor unit with Digital Signal Processing (DSP) capabilities, combined with space connectivity interfaces in a small footprint designed for high-level radiation performance, extreme temperatures and high reliability. The device comes with a high level of integration embedded Static Random Access Memory (SRAM) and flash memory, high-bandwidth communication interfaces including SpaceWire, MIL-STD-1553, and CAN FD, along with analog functions such as a 12-bit Analog-to-Digital Converter (ADC) and Digital-to-Analog Converter (DAC).

For support and to speed up the system design developers can use the SAMRH71F20-EK and SAMRH707F18-EK evaluation boards. Both the devices are supported by the company’s Integrated Development Environment (IDE) for development.

Features of SAMRH71 Microprocessor

Arm Cortex M7 Core running up to 100 Mhz delivering up to 200 DMips
768 Kbytes of multiport SRAM
SpaceWire interface with two SpaceWire ports with Integrated RMAP support and embedded SpaceWire router
One 1553 interface with redundant links compliant to MIL-STD-1553B standard
No Single-Event Latch-up Below an LET Threshold of 62.5 MeV.cm2 /mg @125°C
Total Ionizing Dose of 100 krad(Si)

Features of SAMRH707 Microcontroller

Arm Cortex M7 Core running up to 50 Mhz delivering up to 100 DMips
One 16-channels 12-bit 1 Msps-per-channel Analog-to-Digital Controller (ADC)
One 2-channels 12-bit 1 Msps-per-channel Digital-to-Analog Controller (DAC)
No Single-Event Latch-up Below an LET Threshold of 62.5 MeV.cm2 /mg @125°C
Total Ionizing Dose of 100 krad(Si)

Note: More technical information can be found in the SAMRH71 Datasheet linked at the bottom of this page and in the product pages of SAMRH71 Microprocessor and SAMRH707 Microcontroller.